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Find cheap flights from Missouri to Australia from $922

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Missouri to Australia departing on 5/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 6/15
Sat 6/22

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In the last 7 days travelers have searched 42,211,976 times on KAYAK, and here is why:

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Good to know

Low season

April

High season

December

Cheapest flight

$922
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 27% increase in price.
Flight from St. Louis to Sydney

FAQs for booking flights from Missouri to Australia

  • How does KAYAK find such low prices on flights from Missouri to Australia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Missouri to Australia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Missouri to Australia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Australia from Missouri is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Missouri to Australia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Australia with an airline and back to Missouri with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Missouri to Australia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Australia from Missouri up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Book cheap flights from Missouri to Australia

Recent round-trip flight deals

11/7Thu
1 stopAmerican Airlines
22h 09mMCI-BNE
11/11Mon
1 stopAmerican Airlines
26h 18mBNE-MCI
$1,035
11/7Thu
2 stopsAmerican Airlines
25h 54mMCI-BNE
11/11Mon
2 stopsAmerican Airlines
27h 53mBNE-MCI
$1,036
8/12Mon
2 stopsAir Canada
29h 15mMCI-SYD
8/15Thu
2 stopsAir Canada
40h 05mSYD-MCI
$1,191
9/10Tue
2 stopsAir New Zealand
25h 10mMCI-SYD
9/21Sat
2 stopsAir New Zealand
43h 05mSYD-MCI
$1,359
11/1Fri
2 stops
50h 10mMCI-BNE
11/8Fri
3 stops
47h 30mBNE-MCI
$1,369
9/4Wed
1 stop
25h 00mMCI-SYD
9/11Wed
1 stop
19h 23mSYD-MCI
$1,384
6/9Sun
2 stopsUnited Airlines
28h 15mMCI-SYD
6/24Mon
2 stopsUnited Airlines
28h 15mSYD-MCI
$1,388
9/4Wed
2 stopsUnited Airlines
24h 30mMCI-SYD
9/17Tue
2 stopsUnited Airlines
20h 43mSYD-MCI
$1,389
9/7Sat
2 stopsAir Canada
53h 15mMCI-SYD
9/16Mon
2 stopsAir Canada
40h 00mSYD-MCI
$1,396
9/7Sat
2 stopsAir New Zealand
33h 15mMCI-SYD
9/14Sat
2 stopsAir New Zealand
43h 05mSYD-MCI
$1,407

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Recent one-way flight deals

5/19Sun
3 stops
44h 30mSTL-SYD
$922
5/19Sun
2 stopsAir Canada
48h 15mSTL-SYD
$1,214
6/9Sun
2 stopsAir New Zealand
35h 30mMCI-SYD
$1,260
6/21Fri
2 stopsAir New Zealand
26h 55mSTL-MEL
$1,333
6/9Sun
3 stopsAir Canada
34h 20mMCI-SYD
$1,415
6/9Sun
1 stopDelta
24h 24mMCI-SYD
$1,429
6/21Fri
2 stopsQantas Airways
40h 41mSTL-AVV
$1,496
5/19Sun
1 stopAmerican Airlines
22h 03mSTL-SYD
$1,677
5/29Wed
2 stopsQantas Airways
37h 48mSTL-AVV
$1,709
6/27Thu
1 stopDelta
24h 24mMCI-SYD
$2,569

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Last minute flights from Missouri to Australia

Last minute flight, train and bus deals

5/17Fri
multi-stopAir Canada
53h 20mSTL-SYD
5/28Tue
multi-stopAir Canada
50h 45mSYD-STL
$2,014
5/17Fri
multi-stopAir Canada
29h 20mSTL-SYD
5/28Tue
multi-stopAir Canada
50h 45mSYD-STL
$2,020
5/20Mon
multi-stop
33h 20mMCI-SYD
5/28Tue
multi-stop
31h 55mSYD-MCI
$2,026
5/20Mon
multi-stop
33h 20mMCI-SYD
5/28Tue
multi-stop
28h 54mSYD-MCI
$2,044
5/20Mon
multi-stop
33h 20mMCI-SYD
5/28Tue
multi-stop
28h 54mSYD-MCI
$2,135
5/19Sun
multi-stopAir New Zealand
34h 09mMCI-SYD
5/21Tue
multi-stopAir New Zealand
27h 11mSYD-MCI
$2,171
5/19Sun
multi-stopAir New Zealand
35h 30mMCI-SYD
5/21Tue
multi-stopAir New Zealand
25h 16mSYD-MCI
$2,174
5/17Fri
multi-stopQantas Airways
23h 08mSTL-SYD
5/28Tue
multi-stopQantas Airways
29h 02mSYD-STL
$2,592
5/20Mon
multi-stopDelta
24h 35mMCI-SYD
5/28Tue
multi-stopDelta
19h 36mSYD-MCI
$2,740
5/19Sun
multi-stopQantas Airways
21h 50mMCI-SYD
5/21Tue
multi-stopQantas Airways
20h 47mSYD-MCI
$3,662

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Flights to Australia

Return flight deals:

Australia - Missouri

Cabin classes: